Problem
At Slack, a text utility needs to reverse user-provided strings for formatting tests. Write a function that takes a string and returns a new string with its characters in reverse order.
Formal Specification
- Input: A string
s - Output: A string containing the characters of
sin reverse order
Your solution should handle letters, digits, spaces, punctuation, and Unicode characters as regular characters.
Constraints
- 0 <= len(s) <= 10^5
- s may contain letters, digits, spaces, punctuation, and Unicode characters
- The function must return a new reversed string
Function Signature
def reverse_string(s):
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